Pervez George, the spokesman for Civil Aviation Authority, says experts are in the hillside village of Saddha Batolni in the district of Abbottabad, where the small twin-propeller aircraft crashed and burst into flames.
The military is using three helicopters to transport the remains of the victims from a hospital in the northwestern city of Abbottabad to the capital, Islamabad, on Thursday, the Associated Press reported.
The plane was travelling from the scenic mountain resort of Chitral to Islamabad when it developed a fault and went down on Wednesday.
Pakistan International Airlines has confirmed that all 42 passengers and five crew members were killed in the crash.